HP HPE Alletra 2140 Hardware Manual page 70

1 Controller release lever (open)
2 Controller
Important:
To avoid electrostatic damage, place array components on a grounded anti-static mat. Use an ESD wrist strap
during removal and replacement.
3. Remove the empty primary PCIe cage (left) from the new controller.
a) Lift the tab of the fastener and turn the fastener one half turn (180°) counter clockwise to release the PCIe cage.
b) Grasp the PCIe cage with both hands and lift the cage out of the controller.
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3 Chassis
Maintenance Procedures 70